EP0361883B1 - Keramische Wärmeaustauscher und deren Herstellung - Google Patents

Keramische Wärmeaustauscher und deren Herstellung Download PDF

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Publication number
EP0361883B1
EP0361883B1 EP89309815A EP89309815A EP0361883B1 EP 0361883 B1 EP0361883 B1 EP 0361883B1 EP 89309815 A EP89309815 A EP 89309815A EP 89309815 A EP89309815 A EP 89309815A EP 0361883 B1 EP0361883 B1 EP 0361883B1
Authority
EP
European Patent Office
Prior art keywords
bonding material
segments
heat exchanger
matrix
ceramic heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89309815A
Other languages
English (en)
French (fr)
Other versions
EP0361883A1 (de
Inventor
Toshikazu Ito
Takashi Harada
Toshiyuki Hamanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of EP0361883A1 publication Critical patent/EP0361883A1/de
Application granted granted Critical
Publication of EP0361883B1 publication Critical patent/EP0361883B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/003—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts
    • C04B37/005—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts consisting of glass or ceramic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
    • F28D19/042—Rotors; Assemblies of heat absorbing masses
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/10—Glass interlayers, e.g. frit or flux
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • C04B2237/341—Silica or silicates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/70—Forming laminates or joined articles comprising layers of a specific, unusual thickness
    • C04B2237/704—Forming laminates or joined articles comprising layers of a specific, unusual thickness of one or more of the ceramic layers or articles
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/70—Forming laminates or joined articles comprising layers of a specific, unusual thickness
    • C04B2237/708—Forming laminates or joined articles comprising layers of a specific, unusual thickness of one or more of the interlayers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/009—Heat exchange having a solid heat storage mass for absorbing heat from one fluid and releasing it to another, i.e. regenerator
    • Y10S165/013—Movable heat storage mass with enclosure
    • Y10S165/016—Rotary storage mass
    • Y10S165/017—Rotary storage mass with thermal expansion compensating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149—Honeycomb-like

Definitions

  • the present invention relates to a ceramic heat transmission type or regenerative heat exchanger comprising the features as indicated in the precharacterising part of claim 1.
  • NGK Insulators, Ltd. has formerly disclosed a process capable of producing heat exchangers in Japanese patent publication No. 61-51,240 (U.S. Patent 4,304,585 and U.S. Patent 4,357,987), wherein matrix segments are bonded together with a ceramic-bonding material having almost the same composition as that of the matrix segments and a difference in coefficient of thermal expansion between the bonding material and the segments is not more than 0.1% at 800°C.
  • Japanese patent publication No. 47-14,838 discloses a foamable cement consisting mainly of Li2O, Al2O3, SiO2, and TiO2 as an example of a ceramic-bonding material.
  • U.S. Patent No. 4,335,783 discloses a process for producing heat exchangers in which bonded portions are discontinuous.
  • the entire heat exchanger is designed to have a flexible structure and to lessen difference in temperature between the bonding material and the segments by discontinuous bonding so that propagation of cracks is prevented to improve thermal shock resistance.
  • strength of the partially bonded portions is unfavorably poorer than that of the entire bonded product in the case of a large-size bonded product.
  • the ceramic heat exchanger according to the present invention is set out in claim 1.
  • the matrix segments have honeycomb structure and are made of cordierite.
  • the matrix segments which typically have a coefficient of thermal expansion of not more than 0.06% at 800°C in the gas flowing direction and the bonding material which has the specified difference in coefficient of thermal expansion between the matrix segments and the bonding material, and which has the specified Young's modulus are used. Thereby, stress concentration upon the bonded portions is prevented so that the ceramic heat exchanger having excellent thermal shock resistance can be obtained.
  • Figs. 1 through 3 are views of embodiments of the ceramic heat exchangers according to the present invention.
  • the reason why the Young's modulus of the joined portions is limited to not less than 0.4 time to not more than 1.8 times that of the matrix segment is that if it is less than 0.4 time, strength of the bonded body itself is far weaker than that of the matrix, while if it exceeds 1.8 times, the thermal shock resistance of the bonded portions does not meet the intended range in the present invention.
  • the intended coefficient of thermal expansion of the bonding material can be attained by adjusting the composition to 55.0 to 78.0% by weight of SiO2, 12.0 to 25.0% by weight of Al2O3, not more than 0.2% by weight of each of Na2O and K2O, 1.0 to 3.0% by weight of CaO, and 3.0 to 6.0% by weight of Li2O.
  • the Young's modulus of the bonding material can appropriately be adjusted by adding into the bonding material a given amount of a foaming agent which forms pores after firing, such as graphite, carbon powder or resin beads. Any one of the above-mentioned processes is a favorable process for attaining the coefficient of thermal expansion and the Young's modulus as desired. It goes without saying that so long as the coefficient of thermal expansion and the Young's modulus of the bonding material can be obtained as desired, any process may be employed.
  • a green body is extruded in the form of a honeycomb structural matrix segment having a triangular, rectangular, or hexagonal cell shape or the like, which is then fired. Thereafter, as shown in Figs.
  • a plurality of such segments 1 in which as main component of a cordierite has a coefficient of thermal expansion of not more than 0.06% at 800°C are machined to produce an integrated rotary regenerative ceramic heat exchanger 2 therefrom, coating a ceramic bonding material as an LAS based amorphous glass powder having a chemical composition consisting mainly of Li2O, Al2O3, and SiO2 upon the segments in such a thickness to be 0.1 to 6 mm after firing, fully drying, and then firing at 1,100 to 1,200°C for 1 to 4 hours.
  • the rotary regenerative ceramic heat exchanger can be obtained.
  • the difference in coefficient of thermal expansion between the matrix segments and the bonding material and the Young's modulus of the bonding material are adjusted to not more than 0.02% at 800°C and 0.4 time to 1.8 times that of the matrix, respectively, by adjusting the composition of the bonding material, such as Li2O, Al2O3, and SiO2 and adding the foaming agent thereto.
  • segments A with cells each having a long side of 1.2 mm and a short side of 0.8 mm and segments B with cells having a long side of 1.0 mm and a short side of 0.5 mm were shaped.
  • the wall thickness of the segments was 0.1 mm.
  • two kinds of matrix segments of 130 ⁇ 180 ⁇ 170 mm were prepared by firing the above segments at 1,400°C for 6 hours. At that time, 35 ⁇ 6 of the matrix segments were obtained for each kind.
  • the outer periphery of each of these two kinds of the segments was machined to give an integral rotary regenerative heat exchanger after bonding.
  • a pasty bonding material was applied to portions of the segments to be bonded in such a thickness that the thickness of the bonding material after the firing might be 1.5 mm. Then, the segments were bonded, which were fully dried and fired at 1,150°C for 2 hours.
  • the above pasty bonding material was obtained by adding 2.0, 5.0, 10.0, 20.0 or 30.0% by weight of graphite as a foaming agent to an LAS based amorphous glass powder having a chemical composition of 70.0% by weight of SiO2, 24.0% by weight of Al2O3, 4.3% by weight of Li2O, and 1.5% by weight of CaO, and further adding an organic binder and water thereto.
  • a fired sample of the bonding material was obtained by drying the above bonding material and firing it under the same conditions mentioned above, and used for measuring the Young's modulus.
  • a thermal shock resistance-evaluating test and a fracture-evaluating test were carried out for an integral structure and at a bonded portion, respectively. Results are shown in Table 1. The thermal shock resistance was evaluated based on the maximum temperature at which the sample was not cracked even when extracted from an electric furnace after having been held in a specific location of the furnace. Fracture test was determined by preparing a sample having 4 ⁇ 3 ⁇ 40 mm in which a bonded portion was located at the center, and effecting a four point bending test. Further, the Young's modulus of the matrix was measured in such a direction that long sides of the cells were arranged parallel with the longitudinal direction of the sample. A loading direction was parallel with the cell channels.
  • the ceramic heat exchangers having excellent thermal shock resistance can be obtained by using the bonding material suited for the properties of the matrix segments.

Claims (2)

  1. Keramischer Wärmeübertragertyp- oder regenerativer Wärmetauscher, der eine Vielzahl von Matrixsegmenten (1) umfaßt, die durch ein Bindermaterial miteinander verbunden sind, worin die Differenz im Wärmedehnungskoeffizienten zwischen den Matrixsegmenten (1) und dem Bindermaterial bei 800°C nicht mehr als 0,02 % beträgt, dadurch gekennzeichnet, daß das Bindermaterial ein aufgeschäumtes LAS-Glas ist, dessen Elastizitätsmodul im Bereich von nicht weniger als dem 0,4-fachen bis zu nicht mehr als dem 1,8-fachen desjenigen des Matrixsegments (1) liegt.
  2. Wärmetauscher nach Anspruch 1, worin die genannten Matrixsegmente eine Honigwabenstruktur aufweisen und aus Cordierit bestehen.
EP89309815A 1988-09-29 1989-09-26 Keramische Wärmeaustauscher und deren Herstellung Expired - Lifetime EP0361883B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63242543A JP2505261B2 (ja) 1988-09-29 1988-09-29 セラミック熱交換体およびその製造法
JP242543/88 1988-09-29

Publications (2)

Publication Number Publication Date
EP0361883A1 EP0361883A1 (de) 1990-04-04
EP0361883B1 true EP0361883B1 (de) 1993-02-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89309815A Expired - Lifetime EP0361883B1 (de) 1988-09-29 1989-09-26 Keramische Wärmeaustauscher und deren Herstellung

Country Status (4)

Country Link
US (1) US4953627A (de)
EP (1) EP0361883B1 (de)
JP (1) JP2505261B2 (de)
DE (1) DE68904720T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001053232A1 (fr) * 2000-01-24 2001-07-26 Ngk Insulators, Ltd. Structure en ceramique

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US5439636A (en) * 1992-02-18 1995-08-08 International Business Machines Corporation Large ceramic articles and method of manufacturing
US5199163A (en) * 1992-06-01 1993-04-06 International Business Machines Corporation Metal transfer layers for parallel processing
JP2703728B2 (ja) * 1994-06-17 1998-01-26 日本碍子株式会社 ハニカム状蓄熱体
DE19704144A1 (de) * 1997-02-04 1998-08-06 Emitec Emissionstechnologie Extrudierter Wabenkörper, insbesondere Katalysator-Trägerkörper, mit verstärkter Wandstruktur
JP3777895B2 (ja) * 1999-08-11 2006-05-24 株式会社デンソー セラミックハニカム構造体
DE20023988U1 (de) * 1999-09-29 2008-09-18 IBIDEN CO., LTD., Ogaki-shi Keramische Filteranordnung
JP2001190917A (ja) * 2000-01-13 2001-07-17 Ngk Insulators Ltd 三角セルハニカム構造体
JP4511065B2 (ja) * 2000-06-05 2010-07-28 日本碍子株式会社 ハニカム構造体とハニカムフィルター、及びそれらの製造方法
JP4404497B2 (ja) 2001-03-01 2010-01-27 日本碍子株式会社 ハニカムフィルター、及びその製造方法
JP4511071B2 (ja) * 2001-03-29 2010-07-28 日本碍子株式会社 ハニカム構造体及びそのアッセンブリ
JP4511070B2 (ja) 2001-03-29 2010-07-28 日本碍子株式会社 ハニカム構造体及びそのアッセンブリ
JP2002292225A (ja) * 2001-03-30 2002-10-08 Ngk Insulators Ltd ハニカム構造体及びそのアッセンブリ
JP4094823B2 (ja) * 2001-04-03 2008-06-04 日本碍子株式会社 ハニカム構造体及びそのアッセンブリ
DE60319756T3 (de) * 2002-02-05 2014-04-17 Ibiden Co., Ltd. Wabenkörperfilter zur Abgasreinigung, Kleber, Beschichtungsmaterial und Verfahren zur Herstellung eines solchen Wabenfilterkörpers
JPWO2003067042A1 (ja) * 2002-02-05 2005-06-02 イビデン株式会社 排気ガス浄化用ハニカムフィルタ
EP1489277B2 (de) * 2002-03-22 2012-08-22 Ibiden Co., Ltd. Herstellungsverfahren eines wabenfilters zur reinigung von abgas
US7556665B2 (en) * 2003-03-19 2009-07-07 Ngk Insulators, Ltd. Honeycomb structure
JP2006289237A (ja) * 2005-04-08 2006-10-26 Ibiden Co Ltd ハニカム構造体
WO2006137149A1 (ja) * 2005-06-24 2006-12-28 Ibiden Co., Ltd. ハニカム構造体
JP4753782B2 (ja) * 2005-06-24 2011-08-24 イビデン株式会社 ハニカム構造体
JP5091673B2 (ja) 2005-06-24 2012-12-05 イビデン株式会社 ハニカム構造体及びその製造方法
CN100434137C (zh) * 2005-06-24 2008-11-19 揖斐电株式会社 蜂窝结构体
WO2007069674A1 (ja) * 2005-12-14 2007-06-21 Ngk Insulators, Ltd. 接合材とその製造方法、及びそれを用いたハニカム構造体
US7575793B2 (en) * 2006-03-31 2009-08-18 Corning Incorporated Radial cell ceramic honeycomb structure
WO2008096503A1 (ja) 2007-02-02 2008-08-14 Ngk Insulators, Ltd. ハニカム構造体
WO2008105081A1 (ja) * 2007-02-28 2008-09-04 Ibiden Co., Ltd. ハニカムフィルタ
EP1982966B1 (de) * 2007-03-29 2011-11-09 Ibiden Co., Ltd. Wabenstruktur und zugehöriges Herstellungsverfahren
JP5714897B2 (ja) * 2007-05-04 2015-05-07 ダウ グローバル テクノロジーズ エルエルシー 改良されたハニカムフィルタ
WO2009048994A2 (en) * 2007-10-12 2009-04-16 Dow Global Technologies Inc. Improved thermal shock resistant soot filter
JP5683452B2 (ja) 2008-03-20 2015-03-11 ダウ グローバル テクノロジーズ エルエルシー 耐熱衝撃性セラミックハニカム構造を作製するための改善されたセメントおよびその作製方法
JP2012532082A (ja) 2009-06-29 2012-12-13 ダウ グローバル テクノロジーズ エルエルシー 耐熱ショック性セラミックハニカム構造物を作製するためのマルチモーダルファイバーを含む接着剤
EP2498894A1 (de) 2009-11-11 2012-09-19 Dow Global Technologies LLC Verbesserter zement zur herstellung wärmeschockresistenter keramikwabenstrukturen sowie verfahren zu ihrer herstellung
US9726155B2 (en) 2010-09-16 2017-08-08 Wilson Solarpower Corporation Concentrated solar power generation using solar receivers
AU2013235508B2 (en) 2012-03-21 2018-02-08 Wilson 247Solar, Inc. Multi-thermal storage unit systems, fluid flow control devices, and low pressure solar receivers for solar power systems, and related components and uses thereof
WO2013172916A1 (en) 2012-05-18 2013-11-21 Coopersurgical, Inc. Suture passer guides and related kits and methods
JP6854112B2 (ja) * 2016-11-18 2021-04-07 日本碍子株式会社 熱交換器
SE543027C2 (en) 2017-10-13 2020-09-29 Flexit Sverige Ab Rotating heat exchanger with improved heat transfer capacity

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JPS63263394A (ja) * 1987-04-17 1988-10-31 Ngk Insulators Ltd 回転蓄熱式セラミツク熱交換体

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001053232A1 (fr) * 2000-01-24 2001-07-26 Ngk Insulators, Ltd. Structure en ceramique

Also Published As

Publication number Publication date
DE68904720D1 (de) 1993-03-18
EP0361883A1 (de) 1990-04-04
US4953627A (en) 1990-09-04
JPH0293297A (ja) 1990-04-04
DE68904720T2 (de) 1993-07-08
JP2505261B2 (ja) 1996-06-05

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